Selina solutions for Mathematics [English] Class 6 chapter 17 - Idea of Speed, Distance and Time [Latest edition]

A train covers 51 km in 3 hours. Calculate its speed. How far does the train go in 30 minutes?

A motorist travelled the distance between two towns, which is 65 km, in 2 hours and 10 minutes. Find his speed in metre per minute.

A train travels 700 metres in 35 seconds. What is its speed in km/h?

A racing car covered 600 km in 3 hours 20 minutes. Find its speed in metre per second. How much distance will the car cover in 50 sec?

Rohit goes 350 km in 5 hours. Find:
(i) his speed
(ii) the distance covered by Rohit in 6.2 hours
(iii) the time taken by him to cover 210 km.

A boy drives his scooter with a uniform speed of 45 km/h. Find the distance covered by him in 1 hour 20 min.

A boy drives his scooter with a uniform speed of 45 km/h. Find the time taken by him to cover 108 km.

A boy drives his scooter with a uniform speed of 45 km/h. Find the time taken to cover 900 m.

I travel a distance of 10 km and come back in `2 1/2` hours. What is my speed?

A man walks a distance of 5 km in 2 hours. Then he goes in a bus to a nearby town, which is 40 km, in further 2 hours. From there, he goes to his office in an autorickshaw, a distance of 5 km, in `1/2` hour. What was his average speed during the whole journey?

Jagan went to another town such that he covered 240 km by a car going at 60 kmh^-1. Then he covered 80 km by a train, going at 100 kmh^-1 and the rest 200 km, he covered by a bus, going at 50 kmh^-1. What was his average speed during the whole journey?

The speed of sound in air is about 330 ms^-1. Express this speed in kmh^-1. How long will the sound take to travel 99 km?

A train 180 m long is running at a speed of 90 km/h. How long will it take to pass a railway signal?

A train whose length is 150 m, passes a telegraph pole in 10 sec. Find the speed of the train in km/h.

A train 120 m long passes a railway platform 160 m long in 14 sec. How long will it take to pass another platform which is 100 m long?

Mr. Amit can walk 8 km in 1 hour 20 minutes. How far does he go in:
(i) 10 minutes?
(ii) 30 seconds?

Mr. Amit can walk 8 km in 1 hour 20 minutes. How long will it take him to walk:
(i) 2500 m?
(ii) 6.5 km?

Which is a greater speed of 45 km/h or speed of 12.25 m/sec?
How much is the distance travelled by each in 2 seconds?

A and B start from the same point and at the same time with speeds 15 km/h and 12 km/h respectively, find the distance between A and B after 6 hours if both move in the same direction.

A and B start from the same point and at the same time with speeds 15 km/h and 12 km/h respectively, find the distance between A and B after 6 hours if both move in the opposite direction.

A and B start from the same place, in the same direction and at the same time with speeds 6 km/h and 2 m/sec respectively. After 5 hours who will be ahead and by how much?

Mohit covers a certain distance in 6 hrs by his scooter at a speed of 40 kmh^-1. Find the time taken by Manjoor to cover the same distance by his car at the speed of 60 kmh^-1.

Mohit covers a certain distance in 6 hrs by his scooter at a speed of 40 kmh^-1. Find the speed of Joseph, if he takes 8 hrs to complete the same distance.

A boy swims 200 m in still water and then returns back to the point of start in a total of 10 minutes. Find the speed of his swim in
(i) ms⁻¹
(ii) kmh⁻¹.

A distance of 14.4 km is covered in 2 hours 40 minutes. Find the speed in ms⁻¹. With this speed Sakshi goes to her school, 240 m away from her house, and then returns back. How much time, in all, will Sakshi take?